title: Dehydration induced 2D-to-3D crystal-to-crystal network re-assembly and ferromagnetism tuning within two chiral copper(II)-tartrate coordination polymers.
abstract: The synthesis of two homochiral l-tartrate-copper(II) coordination polymers, [Cu2(C4H4O6)2(H2O)2·xH2O]n (1), and [Cu(C4H4O6)]n (2), under hydrothermal conditions, is reported. Compound 1 adopts a 2D layered network structure with a space group of P21, while compound 2 features a 3D network structure with a space group P21212. Interestingly, the 2D layered structure of compound 1 can undergo a crystal-to-crystal network reassembly, with the formation of the 3D network structure of compound 2 under dehydration conditions. Variable temperature and field magnetic studies reveal the existence of a distinct ferromagnetic interaction between Cu(2+) ions as the result of distinct syn-anti carboxylate bridging coordination modes.
authors.affiliation: Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan. 056461@mail.fju.edu.tw.
authors.forename: Yen-Hsiang
authors.initials: YH
authors.lastname: Liu
authors.forename: Szu-Hsuan
authors.initials: SH
authors.lastname: Lee
authors.forename: Jung-Chun
authors.initials: JC
authors.lastname: Chiang
authors.forename: Po-Chen
authors.initials: PC
authors.lastname: Chen
authors.forename: Po-Hsiu
authors.initials: PH
authors.lastname: Chien
authors.forename: Chen-I
authors.initials: CI
authors.lastname: Yang
mesh_terms: D056831:Coordination Complexes / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D003890:Desiccation; D059346:Magnets / Q000737:chemistry*; D008958:Models, Molecular; D013644:Tartrates / Q000737:chemistry*; D013696:Temperature; D014867:Water / Q000737:chemistry
chemical_list: D056831:Coordination Complexes; D013644:Tartrates; D014867:Water; D003300:Copper; C029768:tartaric acid